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Campfire Outfitter
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What twist rate are the factories using in the .338 Fed tubes?

GB1

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I'd be for betting they're 10's

Dober


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That's what I assumed too.

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Originally Posted by Teeder
That's what I assumed too.


Here is the dpms specs

Description

Barrel:

18" Fluted Barrel
416 Stainless Steel Lite Contour
6 grooves, right-hand 1x10 twist,
button rifled
Custom Compensator
Lightweight Gas Block

Chamber:

.338 Federal

Method of Operation:

Gas operated rotating bolt

Bolt & Carrier:

8620 steel bolt carrier, heat treated
and plated per Mil Spec
Phosphated steel bolt, heat treated
and plated per Mil Spec

Sights:

None (mounting optics only)

Weight:

Empty - 7.9 lbs.

Length:

39.125"

Upper Receiver:

A3 Style Lightweight Flattop
Thick walled, extruded from 7129-T5 Aluminum
Hard coat anodized per Mil Spec and Teflon coated black
Right hand ejection
Dust Cover, Shell Deflector and Forward Assist

Lower Receiver:

Milled from solid billet of 6061-T6 Aluminum
Hard coat anodized per Mil Spec and Teflon coated black
Semi-Auto trigger group (early 2008 model)
Two Stage Trigger (late 2008 - Current model)
Integral trigger guard
Aluminum magazine release button

Stock:

Skeletonized black Zytel mil spec w/trap door assembly

Handguards:

Standard length Carbon Fiber Free Float Tube




Each Rifle comes with a 4 round and a 19 round magazine, 1-Nylon Web Sling

Scope Not Included



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Originally Posted by Mark R Dobrenski
That'd be fun to do, especially over across the pond with a ton load of time and a lot of bullets.

Course the SST isn't quite what I'd pick as a big bone breaker even in a 338 Fed....

I'd say use the bestest bullets each one has available for the job at hand. If one wanted to go deep and break big bones it's gonna be very very tough to beat the 175 Noz out of the 7's big lil or small.

You mentioned the SST in the 338 Fed with a BC of .430 so if you wish to comp SST's in the two small case rounds I spect a fair comp would be to use the 160 SST with a BC of .550 out of the lil 7.

One could get 2700 out of the lil 7 with the 160 and what maybe 2400 out of the lil 33 if both rigs had 22" tubes.

IMO what one will do the other will do when it comes to bruins/moose or elks. And at long range the lil 7 will once again hand the 33 it's bunz!

Up close with stouter bullets for going for the most penetration I'd still bet on the 175 Noz going deeper than any of the 33's will do if bullet construction is the same. And this to me negates the 33's bigger cross sectional area or whatever you called it.

Just the way I see it but the 7's big lil or small are incredibly tough to beat. And this is coming from a fella who's been a confirmed 33 nutcase for many moons. (wore out two barrels with .340's shooting game/targets and long range chucks so I'd say that qualify's me as a 33 nutcase)

Dober



Never once claimed the 338 Fed to be long range. Thats where my 264WM with a 30" barrel with 1 in 8" twist takes over. Where is your 100 and 200 yard numbers? The 338 Federal American Eagle 185gr soft point starts at 2750fps and 3105 ft lbs, 100 yds 2510fps and 2595 ft lbs, 200 yrds 2290fps and 2150ft lbs. Hand loads will better that a bunch.

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Originally Posted by Mark R Dobrenski


Pick one and get after it, don't matter to me which one you use but I have a hard time finding the 338 Fed to be the big 7's equal. But, that's just how I see it.

Dober


You are right on the money. The 7mm mag and a .338 Fed are way too different to even start to compare. What Federal left out of that marketing comparison was the "at the muzzle" part. That being said stuffing a 160 in a .338 makes about as much sense as a 120 gr in a 7 mm, you really have to ask WHY??

Now Mark, crunch the numbers on a .338 Fed with a 185 TTSX going 2750-2770 fps and you will see that its very adequate to 500 yds, and arguably the best of the bunch for big critters from a standard SA. A 7 mm Mag its not, but maybe better described as "almost a .30-06", but so is a well loaded .308 - some would argue....


"Do you want it "Right", or "Right now"? - always a good question.
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With all thats been said about the 338 federal, how do you guy's think it will fare against the .338 RCM? They are both short .338's, but it looks as if the RCM has a slight edge for speed/energy and also looks like there are some heavier bullet loadings available.
Bill

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The 338RCM is pretty equal to the 338-06. It's +/- 200fps faster than a 338 Federal depending on handloads.

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Originally Posted by Salmotrutta
Originally Posted by Mark R Dobrenski


Pick one and get after it, don't matter to me which one you use but I have a hard time finding the 338 Fed to be the big 7's equal. But, that's just how I see it.

Dober


You are right on the money. The 7mm mag and a .338 Fed are way too different to even start to compare. What Federal left out of that marketing comparison was the "at the muzzle" part. That being said stuffing a 160 in a .338 makes about as much sense as a 120 gr in a 7 mm, you really have to ask WHY??

Now Mark, crunch the numbers on a .338 Fed with a 185 TTSX going 2750-2770 fps and you will see that its very adequate to 500 yds, and arguably the best of the bunch for big critters from a standard SA. A 7 mm Mag its not, but maybe better described as "almost a .30-06", but so is a well loaded .308 - some would argue....


Since we be gakkin' and all, if a feller really wanted to go long with a .338 Fed, the 225-gn Accubond at 2500 fps (which should be doable, as long as COAL doesn't become a problem) wipes a light/ fast bullet off the game board. smile

Having run low-BC bullets fast with my .358, and tried them at longer ranges, I can tell you they suuuuck. It's the wind; it has it's way with them.

And of course a 7mm eats either's lunch AND steals their chocolate milk AND gives them an atomic wedgie for drill. smile


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Originally Posted by Jeff_O
Since we be gakkin' and all, if a feller really wanted to go long with a .338 Fed, the 225-gn Accubond at 2500 fps (which should be doable, as long as COAL doesn't become a problem) wipes a light/ fast bullet off the game board. smile

Having run low-BC bullets fast with my .358, and tried them at longer ranges, I can tell you they suuuuck. It's the wind; it has it's way with them.

I agree. I just don't know if that long bullet will eat up to much space trying to make an adequate COAL. I'm thinking something like the 200gr Accubond or 210gr TTSX at 2600 or so might make real nifty 400+ yard bullets in a .338 Federal. It would be a helluva thumper and put big holes in chit with either.

Last edited by seattlesetters; 04/15/11.

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JB found that either the 225-gn .33 cal or the 225-gn .35 cal Accubond had the ogive back in the case neck at 2.8" COAL- but I forget which it was! blush

Having flung a buttload of the .33-cal 225's out to 650 yds with my .338, I can report that they are a very constant, accurate bullet.



The CENTER will hold.

Reality, Patriotism,Trump: you can only pick two

FÜCK PUTIN!
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Originally Posted by Jeff_O
[quote=Salmotrutta][quote=Mark R Dobrenski]

And of course a 7mm eats either's lunch AND steals their chocolate milk AND gives them an atomic wedgie for drill. smile


That is about model perfecto!!

Dober


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Jambrb: Sheesh!
Quote from turd ingwe: "Whats a .338 federal....?"
Its ignorant turds like this that make this site LESS usefull, fun and informative.
Sorry that turds like ingwe are not mature enough to either make a "quality contribution" or just say nothing at all.
Shameful waste he is.
Now on to some real life, real hands on, real experience with the 338 Federal!
I have been shooting my Tikka T-3 in 338 Federal for more than 3 years now.
I love it!
My Rifle is accurate and has rather mild recoil.
I have shot groups (3 shots at 100 yards) as small as .760" with my rig.
I have a Zeiss Diavari 3x9 variable scope on my Tikka.
I use my 338 Federal for spring and fall Black Bear Hunting and for Elk Hunting in the thick cover.
I have three friends who also enjoy their 338 Federal Rifles for Big and Medium size Game here in Montana.
I would venture an opinion that the 338 Federal is NOT setting the world on fire but it has a following and is a usefull and accurate cartridge.
Factory brass has of recent become available and that will add to its appeal.
I plan on using my 338 Federal when I get drawn for a Moose and/or Bison tag here in Montana!
Beware of turds!
Hold into the wind
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VG- How many threads have you started that you have provided either incomplete and or flat out wrong info? Wouldn't that be a bit of pot and kettle regarding contributions to this site?

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Ingwe is hardly ignorant. He's a good guy (for a turd, lol).

He was just joking...


The CENTER will hold.

Reality, Patriotism,Trump: you can only pick two

FÜCK PUTIN!
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VG: I have waited 6 hrs. to see if ingwe responded and I salute him for NOT.

1. He knows how to spell IAMBRB 2. He has a sense of HUMOR, and 3.His icon tells he was JOKING.

I think he is a higher class of turd.

JWALL (Jerry)
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Campfire 'Bwana
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Originally Posted by BobinNH

The 338 Federal has its' virtues but competeing with a 7 mag as a LR cartridge ain't one of them.


Man, isn't that the truth.

For me, the main virtue the 338 Mexicop is the bigger hole it requires in the barrel of a Kimber MT 84M, thereby shedding another 1.5 ounce. Dat's it.

Aside from that, I see no virtue in the round over a 308 Win. I'd sooner run a 180 in a 308 Win than a 180 in a 338 Federale.

Is that a thread killer or conversation starter? It's a little late at night to tell which grin


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I like that. I may call it the .338 Federali from this point forward....


Travis

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I'd run at least a 200-gn bullet in a 338 Fed myself. When comparing cartridges of different bore sizes, holding bullet weight constant is usually a bit... non-illuminating. smile



The CENTER will hold.

Reality, Patriotism,Trump: you can only pick two

FÜCK PUTIN!
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Here is Barnes load data from there web site you have to go to the 140 gr bullet in their data to reach 3100fps in the 7mm rem mag. Barnes is one of the more accurate load data providers.



338 Federal
♦ Indicates most accurate load
Bullet Weight: 160 gr Case Trim Length: 2.005" S.D. 0.200
Bullet Style: Tipped TSX FB Primer: Fed GM210M B.C. -
COAL: 2.820" Barrel Length: 24"
Case: Federal Twist Rate: 1:10"
Charge Velocity Charge Velocity Load
Powder (grains) (fps) (grains) (fps) Density (%)
♦ RL 7 40.0 2695 44.0 2923 99
AA 2230 48.0 2861 53.0 3089 105


7mm Remington Magnum

Bullet Weight: 160 gr Case Trim Length: 2.490" S.D. 0.283
Bullet Style: TSX FB Primer: Fed GM215M B.C. 0.392
COAL: 3.240" Barrel Length: 24"
Case: W-W Twist Rate: 1:9.5"
Bullet Weight: 160 gr Case Trim Length: 2.490" S.D. 0.283
Bullet Style: MRX BT Primer: Fed GM215M B.C. 0.439
COAL: 3.240" Barrel Length: 24"
Case: W-W Twist Rate: 1:9.5"
Charge Velocity Charge Velocity Load
Powder (grains) (fps) (grains) (fps) Density (%)
H1000 59.0 2621 66.0 2842 93
 RL 25 55.5 2645 63.0 2856 88

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